使用post方法获取组合框的值 [英] Getting the value of a combo-box using post method
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问题描述
我想用php来获取组合框的值，并且使用post方法...
任何人都可以告诉我如何。
< HTML>
< head>
< title>虚拟图书馆< / title>
< link href =css / login.css =stylesheet/>
< link href =css / style.css =stylesheet/>
< script type =text / javascriptsrc =scripts / ajax_search.js>< / script>
< / head>
< body>
< div id =wrapper>
< div id =headeralign =center>
< ul align =center>
< li>< a href =index.php>< span>主页< / span>< / a>< / li>
< li>< a href =news.html>< span>前100个下载< / span>< / a>< / li>
< li>< a href =upload.php>< span>上传< / span>< / a>< / li>
<？php if（isset（$ _ SESSION ['login_user']））
{
$ uname = $ _SESSION ['login_user'];
echo< li>< a href ='profile.php'>< span> $ uname< / span>< / a>< / li>
echo< li>< a href ='logout.php'>< span> LogOut< / span>< / a>< / li>
else {
echo< li>< a href ='login.php'>< span>会员登录< / span>< / a>< /锂>中;
echo< li>< a href ='register.php'>< span>注册< / span>< / a>< / li>;
}
？>
< li>< a href =downloads.html>< span> RSS< img src =images / rss.gifid =rss>< / span>< ; / A>< /锂>
< / ul>
< / div>
<？php if（isset（$ _ SESSION ['login_user']））
{
echo'< div class ='frmdiv'>
< form action ='upload_file.php'method ='post'enctype ='multipart / form-data'>
< table width = '38％'border ='0'align ='center'cellpadding ='0' cellspacing ='0'>
< tr>
< td colspan ='2'>< div align ='center'>< font size ='2'face =' >>上传档案< / font>< / div>< / td>
< / tr>
< tr>
< td>& nbsp;<< ; / td>
< td>& nbsp;< / td>
< / tr>
< tr>
< td colspan ='2'>< hr>< / td>
< / tr>
< tr>
< td height ='26'>< font size ='2'face ='verdana'> FileName< / font>< / td>
< td>< font size ='2'face ='verdana'>
< input type ='file'name ='file'>< / font>
< / td>
< / tr>
< tr>
< td>& nbsp;< / td>
< td>& nbsp;< / td>
< / tr>
< tr>
< td>< / td>
< td>< select name ='media_type'>
< option value =''selected>选择媒体类型...< / option>
< option value ='pdf'> PDF< / option>
< option value ='chm'> CHM< / option>
< option value ='epub'> EPUB< / option>
< option value ='html'> HTML< / option>
< option value ='djvu'> DJVU< / option>
< / select>< / td>
< / tr>
< tr>
< td>& nbsp;< / td>
< td>& nbsp;< / td>
< / tr>
< tr>
< td>& nbsp;< / td>
< td>< font size ='2'face ='verdana'>
< input type ='submit'name ='Submit'value ='Upload'>< / font>
< / td>
< / tr>
< tr>
< td colspan ='2'>< hr>< / td>
< / tr>
< tr>
< td>& nbsp;< / td>
< td>& nbsp;< / td>
< / tr>
< / table>
< / form>
< div align ='center'>;
}
else {
echo< script type ='text / javascript'>; $ b $ ;
echolocation ='login.php';
echo< / script;
$ echoalert（'您必须登录上传'）; b
$ b< / div>
< / body>
< / html>
这是组合框。
解决方案
$ b $ pre $
if（isset（$ _ POST ['media_type']）{
$ value = $ _POST ['media_type' ];
}
更新：由于这不适合您，请查看如果你得到任何后期变量：
pre $ foreach（$ _POST as $ var => $ value）{
echo$ var = $ value< ; br> n;
}
I wanted to use php to get the value of a combo box, and I am using post method... can anyone tell me how.
<html>
<head>
<title>Virtual Library</title>
<link href="css/login.css" rel="stylesheet"/>
<link href="css/style.css" rel="stylesheet"/>
<script type="text/javascript" src="scripts/ajax_search.js"></script>
</head>
<body>
<div id="wrapper">
<div id="header" align="center">
<ul align="center">
<li><a href="index.php"><span>Home</span></a></li>
<li><a href="news.html"><span>Top 100 Downloads</span></a></li>
<li><a href="upload.php"><span>Upload</span></a></li>
<?php if(isset($_SESSION['login_user']))
{
$uname = $_SESSION['login_user'];
echo "<li><a href='profile.php'><span>$uname</span></a></li>";
echo "<li><a href='logout.php'><span>LogOut</span></a></li>";
}
else{
echo "<li><a href='login.php'><span>Member Login</span></a></li>";
echo "<li><a href='register.php'><span>Register</span></a></li>";
}
?>
<li><a href="downloads.html"><span>RSS <img src="images/rss.gif" id="rss"></span></a></li>
</ul>
</div>
<?php if(isset($_SESSION['login_user']))
{
echo "<div class='frmdiv'>
<form action='upload_file.php' method='post' enctype='multipart/form-data'>
<table width='38%' border='0' align='center' cellpadding='0' cellspacing='0'>
<tr>
<td colspan='2'><div align='center'><font size='2' face='verdana'>Upload File</font></div></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td colspan='2'><hr></td>
</tr>
<tr>
<td height='26'><font size='2' face='verdana'>FileName</font></td>
<td><font size='2' face='verdana'>
<input type='file' name='file' ></font>
</td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td></td>
<td><select name='media_type' >
<option value='' selected>Select a media type...</option>
<option value='pdf'>PDF</option>
<option value='chm'>CHM</option>
<option value='epub'>EPUB</option>
<option value='html'>HTML</option>
<option value='djvu'>DJVU</option>
</select></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><font size='2' face='verdana'>
<input type='submit' name='Submit' value='Upload'></font>
</td>
</tr>
<tr>
<td colspan='2'><hr></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
</table>
</form>
<div align='center'>";
}
else{
echo "<script type='text/javascript'>";
echo "alert('You Must Be Logged In To Upload');";
echo "location='login.php'";
echo "</script";
}
?>
</div>
</body>
</html>
this is the combo box.
解决方案
Try:
if(isset($_POST['media_type']){
$value = $_POST['media_type'];
}
Update: Since that doesn't work for you, check to see if you are getting any post variables:
foreach ($_POST as $var => $value) {
echo "$var = $value<br>n";
}
这篇关于使用post方法获取组合框的值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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